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WO2008150574A3 - Meilleure réponse isotopique avec des spectromètres à rayons gamma basés sur un petit scintillateur - Google Patents

Meilleure réponse isotopique avec des spectromètres à rayons gamma basés sur un petit scintillateur Download PDF

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Publication number
WO2008150574A3
WO2008150574A3 PCT/US2008/059829 US2008059829W WO2008150574A3 WO 2008150574 A3 WO2008150574 A3 WO 2008150574A3 US 2008059829 W US2008059829 W US 2008059829W WO 2008150574 A3 WO2008150574 A3 WO 2008150574A3
Authority
WO
WIPO (PCT)
Prior art keywords
scintillator
isotopic
response
improved
gamma
Prior art date
Application number
PCT/US2008/059829
Other languages
English (en)
Other versions
WO2008150574A2 (fr
Inventor
Norman W. Madden
Frederick S. Goulding
Stephen J. Asztalos
Original Assignee
Lawrence Livermore National Security, Llc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Lawrence Livermore National Security, Llc filed Critical Lawrence Livermore National Security, Llc
Priority to EP08825871A priority Critical patent/EP2140290A2/fr
Publication of WO2008150574A2 publication Critical patent/WO2008150574A2/fr
Publication of WO2008150574A3 publication Critical patent/WO2008150574A3/fr

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/16—Measuring radiation intensity
    • G01T1/20—Measuring radiation intensity with scintillation detectors
    • G01T1/202—Measuring radiation intensity with scintillation detectors the detector being a crystal
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01T—MEASUREMENT OF NUCLEAR OR X-RADIATION
    • G01T1/00—Measuring X-radiation, gamma radiation, corpuscular radiation, or cosmic radiation
    • G01T1/16—Measuring radiation intensity
    • G01T1/20—Measuring radiation intensity with scintillation detectors
    • G01T1/2008—Measuring radiation intensity with scintillation detectors using a combination of different types of scintillation detectors, e.g. phoswich

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Molecular Biology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Measurement Of Radiation (AREA)
  • Nuclear Medicine (AREA)

Abstract

L'invention concerne le contexte intrinsèque d'un spectromètre à rayons gamma qui est significativement réduit en entourant le scintillateur avec un second scintillateur. Ce second scintillateur (externe) entoure le premier scintillateur et a une ouverture d'approximativement le même diamètre que le scintillateur central plus petit dans la direction avant. Le second scintillateur est choisi pour avoir un nombre atomique supérieur, et a ainsi une probabilité plus importante pour une interaction de diffusion Compton que dans la région interne. Des événements de diffusion qui sont essentiellement simultanés en coïncidence avec les premier et second scintillateurs, d'une perspective électronique, sont exclus électroniquement du flux de données. Ainsi, seuls des rayons gamma qui sont entièrement contenus dans le scintillateur central plus petit, sont utilisés à des fins analytiques.
PCT/US2008/059829 2007-04-10 2008-04-10 Meilleure réponse isotopique avec des spectromètres à rayons gamma basés sur un petit scintillateur WO2008150574A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP08825871A EP2140290A2 (fr) 2007-04-10 2008-04-10 Meilleure réponse isotopique avec des spectromètres à rayons gamma basés sur un petit scintillateur

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US92294007P 2007-04-10 2007-04-10
US60/922,940 2007-04-10
US12/100,254 2008-04-09
US12/100,254 US8101919B2 (en) 2007-04-10 2008-04-09 Isotopic response with small scintillator based gamma-ray spectrometers

Publications (2)

Publication Number Publication Date
WO2008150574A2 WO2008150574A2 (fr) 2008-12-11
WO2008150574A3 true WO2008150574A3 (fr) 2009-11-12

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/059829 WO2008150574A2 (fr) 2007-04-10 2008-04-10 Meilleure réponse isotopique avec des spectromètres à rayons gamma basés sur un petit scintillateur

Country Status (3)

Country Link
US (1) US8101919B2 (fr)
EP (1) EP2140290A2 (fr)
WO (1) WO2008150574A2 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8494808B2 (en) 2010-05-17 2013-07-23 The Johns Hopkins University Method for optimizing parameters for detection systems
US9201160B2 (en) 2013-11-08 2015-12-01 Baker Hughes Incorporated Measurement of downhole gamma radiation by reduction of compton scattering
CN103698801B (zh) * 2013-11-29 2016-01-27 西北核技术研究所 高能质子和中子能谱测量的多层闪烁探测器及测量方法
CN104614754B (zh) * 2015-01-26 2017-08-25 苏州瑞派宁科技有限公司 组合闪烁晶体、组合闪烁探测器及辐射探测设备
CN106405623B (zh) * 2016-05-11 2019-10-08 吉林大学 康普顿加和谱仪
CN108535766A (zh) * 2017-03-06 2018-09-14 中国辐射防护研究院 一种叠层闪烁型反康普顿γ谱仪
US10024985B1 (en) * 2017-05-02 2018-07-17 David Edward Newman Gamma ray detector with two-dimensional directionality
US10330804B1 (en) * 2018-02-04 2019-06-25 David Edward Newman One-dimensional directional particle detector
WO2019198125A1 (fr) * 2018-04-09 2019-10-17 公立大学法人大阪府立大学 Dispositif et procédé de détection de rayonnements électromagnétiques
US10261200B1 (en) 2018-11-12 2019-04-16 David Edward Newman Cylindrical directional detector without collimator
CN109407139B (zh) * 2018-12-21 2024-03-22 苏州瑞派宁科技有限公司 组合闪烁晶体及包括组合闪烁晶体的辐射探测装置和系统
CN112764086B (zh) * 2020-12-28 2023-04-28 中国科学技术大学 一种小型化复合型γ谱仪

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US6207957B1 (en) 1998-09-18 2001-03-27 The Regents Of The University Of California System to quantify gamma-ray radial energy deposition in semiconductor detectors
US6528797B1 (en) 1999-04-16 2003-03-04 The Regents Of The University Of Michigan Method and system for determining depth distribution of radiation-emitting material located in a source medium and radiation detector system for use therein
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SAINT GOBAIN CRYSTALS: "Compton Suppressors, Detectors for suppressing unwanted background", 2002, pages 1 - 2, XP002535264, Retrieved from the Internet <URL:http://www.detectors.saint-gobain.com/Media/Documents/S0000000000000001004/SGC_Compton_Suppressor_Data_Sheet.pdf> [retrieved on 20090703] *
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Also Published As

Publication number Publication date
US8101919B2 (en) 2012-01-24
EP2140290A2 (fr) 2010-01-06
US20080251728A1 (en) 2008-10-16
WO2008150574A2 (fr) 2008-12-11

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